/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ranger.db;

import org.apache.commons.collections.CollectionUtils;
import org.apache.ranger.common.db.BaseDao;
import org.apache.ranger.entity.XXRMSResourceMapping;
import org.apache.ranger.entity.XXRMSServiceResource;
import org.apache.ranger.plugin.model.RangerServiceResource;
import org.springframework.stereotype.Service;

import javax.persistence.NoResultException;

import java.util.ArrayList;
import java.util.List;

@Service
public class XXRMSResourceMappingDao extends BaseDao<XXRMSResourceMapping> {
    public XXRMSResourceMappingDao(RangerDaoManagerBase daoManager) {
        super(daoManager);
    }

    public List<Object[]> getResourceMappings() {
        return getEntityManager().createNamedQuery("XXRMSResourceMapping.getResourceMapping", Object[].class).getResultList();
    }

    public void deleteByHlResourceId(Long resourceId) {
        getEntityManager()
                .createNamedQuery("XXRMSResourceMapping.deleteByHlResourceId")
                .setParameter("resourceId", resourceId)
                .executeUpdate();
    }

    public void deleteByLlResourceId(Long resourceId) {
        getEntityManager()
                .createNamedQuery("XXRMSResourceMapping.deleteByLlResourceId")
                .setParameter("resourceId", resourceId)
                .executeUpdate();
    }

    public void deleteByHlAndLlResourceId(Long hlResourceId, Long llResourceId) {
        getEntityManager()
                .createNamedQuery("XXRMSResourceMapping.deleteByHlAndLlResourceId")
                .setParameter("hlResourceId", hlResourceId)
                .setParameter("llResourceId", llResourceId)
                .executeUpdate();
    }

    public XXRMSResourceMapping findByHlAndLlResourceId(Long hlResourceId, Long llResourceId) {
        try {
            return getEntityManager()
                    .createNamedQuery("XXRMSResourceMapping.findByHlAndLlResourceId", XXRMSResourceMapping.class)
                    .setParameter("hlResourceId", hlResourceId)
                    .setParameter("llResourceId", llResourceId)
                    .getSingleResult();
        } catch (NoResultException e) {
            // ignore
        }

        return null;
    }

    public List<Long> findByHlResource(RangerServiceResource hlResource) {
        return findByHlResourceId(hlResource.getId());
    }

    public List<Long> findByHlResourceId(Long hlResourceId) {
        return getEntityManager()
                .createNamedQuery("XXRMSResourceMapping.findByHlResourceId", Long.class)
                .setParameter("hlResourceId", hlResourceId)
                .getResultList();
    }

    public List<Long> findByLlResource(RangerServiceResource llResource) {
        return findByLlResourceId(llResource.getId());
    }

    public List<Long> findByLlResourceId(Long llResourceId) {
        return getEntityManager()
                .createNamedQuery("XXRMSResourceMapping.findByLlResourceId", Long.class)
                .setParameter("llResourceId", llResourceId)
                .getResultList();
    }

    public List<RangerServiceResource> getServiceResourcesByLlResourceId(long llResourceId) {
        List<RangerServiceResource> ret = new ArrayList<>();

        List<Object[]> rows = null;

        try {
            rows = getEntityManager()
                    .createNamedQuery("XXRMSResourceMapping.getServiceResourcesByLlResourceId", Object[].class)
                    .setParameter("llResourceId", llResourceId)
                    .getResultList();
        } catch (NoResultException e) {
            // Nothing
        }

        if (CollectionUtils.isNotEmpty(rows)) {
            for (Object[] row : rows) {
                XXRMSServiceResource xxServiceResource = new XXRMSServiceResource();

                xxServiceResource.setId((Long) row[0]);
                xxServiceResource.setGuid((String) row[1]);
                xxServiceResource.setVersion((Long) row[2]);
                xxServiceResource.setIsEnabled((Boolean) row[3]);
                xxServiceResource.setResourceSignature((String) row[4]);
                xxServiceResource.setServiceId((Long) row[5]);
                xxServiceResource.setServiceResourceElements((String) row[6]);

                ret.add(XXRMSServiceResourceDao.populateViewBean(xxServiceResource));
            }
        }

        return ret;
    }
}
